To keep rainwater out, a landfill has a storm drainage system to route the runoff into drainage ditches and away from the buried trash. Other parts of the system include concrete, plastic or metal culverts unde
PVC plumbing is sturdy and so is PVC pipe. However, in many cases, PVC is also only useful when you have it cleaned out. A little dusty texture might be alright in most cases, but you may need to do more to make sure your pipes are clean, clog-free, and ready at other times. L...
To keep rainwater out, a landfill has a storm drainage system to route the runoff into drainage ditches and away from the buried trash. Other parts of the system include concrete, plastic or metal culverts underneath nearby roads and stormwater basins, which can reduce the suspended sediment in...
To keep rainwater out, a landfill has a storm drainage system to route the runoff into drainage ditches and away from the buried trash. Other parts of the system include concrete, plastic or metal culverts underneath nearby roads and stormwater basins, which can reduce the suspended sediment in...
How laying of the existing pipe culvert for retread material and the heat exchanger using the same, sewer waste heat utilization systemPROBLEM TO BE SOLVED: To provide a recycled material for an existing pipe conduit that can efficiently lay a heat exchanger simultaneously with the repair of the...
The bottom of the trench must be capable of providing long-term support to the culvert or pipe and the backfill material, providing a uniform surface. One option to consider if the bottom of the trench is irregular is adding a trench box. You'll need to create a sub-trench for the box...
aper linear foot bid for corrugated metal and structural plate pipe, pipe-arch, arch, or box culvert of the sizes specified in the contract documents. 每只为波纹状的金属出价的线性脚和在合同文件指定的大小的结构板材管子、管子曲拱、曲拱或者函渠。[translate] ...
to no water. Since you didn’t have any freeze-up problems before, you can be pretty much assured that your heat tape has gone out. When a heat tape goes, it goes. There’s no fixing it. Just plan on replacing it. The typical life of a properly-installed heat tape is 3-5 years...
PROBLEM TO BE SOLVED: To provide a repairing method of an underdrainage basin which does not need to secure a wide working yard on an upper part of the underdrainage basin.SOLUTION: A repairing method of a drainage basin 10 in which an underdrainage inflow pipe 1a is combined with an ...
To keep rainwater out, a landfill has a storm drainage system to route the runoff into drainage ditches and away from the buried trash. Other parts of the system include concrete, plastic or metal culverts underneath nearby roads and stormwater basins, which can reduce the suspended sediment in...